Home / 39,595.40-54,641.64-21,691.52

Finding the Fourth Proportional to 39,595.40, 54,641.64 and 21,691.52

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Solution

The fourth proportional to 39,595.40, 54,641.64 and 21,691.52 is: 29,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595.40 : 54,641.64 = 21,691.52 : x
  2. Step 2: Convert to fraction form
    39,595.40/54,641.64 = 21,691.52/x
  3. Step 3: Cross multiply
    39,595.40x = 54,641.64 × 21,691.52
  4. Step 4: Simplify right side
    39,595.40x = 1,185,260,226.89
  5. Step 5: Solve for x
    x = 1,185,260,226.89/39,595.40
  6. Step 6: Final answer
    x = 29,934.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.